The Washer,flat, cataloged under National Stock Number 5310-00-883-2974, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Triumph Thermal Systems - Maryland, Inc.. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-883-2974 |
| Primary Part Number | 59-744 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Triumph Thermal Systems - Maryland, Inc. |
| Status | ACTIVE |
| Overall Diameter | 0.331 INCHES MINIMUM AND 0.341 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.193 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN |
| Thickness | 0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 59-744 PRIMARY | Triumph Thermal Systems - Maryland, Inc. (USA) |
NSN 5310-00-883-2974 is a Washer,flat, manufactured by Triumph Thermal Systems - Maryland, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-883-2974 has 1 manufacturer part number on file: 59-744 (Triumph Thermal Systems - Maryland, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5999-01-675-4486. Verify interchangeability with system specifications before substitution.
Key specifications for 59-744: Overall Diameter: 0.331 INCHES MINIMUM AND 0.341 INCHES MAXIMUM IN; Material Document and Classification: MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: PASSIVATE OVERALL. 9 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.